Crystal structure of flumioxazin

Abstract

The title compound {systematic name: 2-[7-fluoro-3,4-dihydro-3-oxo-4-(prop-2-yn-1-yl)-2H-1,4-benzoxazin-6-yl]-4,5,6,7-tetrahydro-1H-isoindole-1,3(2H)-dione}, C19H15FN2O4, is a dicarboximide herbicide. The dihedral angle between the maleimide and benzene ring planes is 66.13 (5)°. In the crystal, C—H...O and C—H...F hydrogen bonds and weak C—H...π interactions [3.5601 (19) Å] link adjacent molecules, forming two-dimensional networks extending parallel to the (110) plane.

Keywords

• crystal structure
• dicarboximide herbicide
• flumioxazin
• 1H-isoindole
• 1,4-benzoxazine
• C—H...F hydrogen bonds